Programmer Think

The concurrent programming technology is a necessary knowledge in the development of Internet applications. The author of this article starts to analyze thread pools to gain a better understanding of concurrent programming in Java. * Above Thread Knowledge Compilation for Java Concurrent Programming The purpose and benefits of threads have bee ...

◆ summary In this paper, the author tries to combine non blocking and blocking queues to become a new combined thread pool. The thread pool has a shared task queue, and each worker thread has a work task queue. Tasks submitted by thread pool users are first saved in the shared task queue. The scheduler thread of the thread pool assigns the task ...

java thread pool configuration details ThreadPoolExecutor full parameter construction public ThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> work ...

1, Inherit Thread class The Thread class essentially implements an instance of the Runnable interface. It starts a new Thread by inheriting the Thread class and copying the run method. Calling the start method tells the CPU that the Thread is ready to execute, and then the system will execute its run method when it has time. Directly calling t ...

outline According to Anthony Williams's "C + + concurrent programming practice", One worker thread operates at the head of the task queue, while other worker threads operate at the end of the task queue. This actually means that the queue is a last in, first out stack for owning threads. The tasks recently put in the queue will be ta ...

preface During this time, I read the basic content of C + + concurrent programming practice and wanted to use the recently learned knowledge to realize a simple thread pool by myself. thinking Personal understanding of thread pool is to use a fixed number of threads that have been created to perform the specified tasks, so as to avoid th ...

summary This paper summarizes the meaning of parameters in thread pool construction methods and common methods of setting thread pool parameters. Parameter meaning ThreadPoolExecutor contains four construction methods in total. The following methods are finally called. The meaning of parameters is as follows: public ThreadPoolExecutor(int c ...

The previous article described how to create a thread. This is relatively simple. There will be a problem. If more threads are created, the efficiency of the system will be greatly reduced, because it takes time to create and destroy threads frequently So how to reuse existing threads? That is to achieve this effect through thread pool! First ...

IO multiplexing: The IO multiplexing model is based on the demultiplexing function select provided by the kernel. Using the select function can avoid the problem of polling and waiting in the synchronous non blocking IO model. select This function is used to monitor the change of file descriptor - read / write or exception Parameters ...

Execute an asynchronous task. Are you still just a new Thread? Then you have too many out. The disadvantages of new Thread are as follows: a. The performance of each new Thread to create a new object is poor. b. Threads lack unified management, may create new threads without restrictions, compete with each other, and may occupy too ma ...